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Design of CO, CO2 and CH4 gas sensors based on correlation spectroscopy using a Fabry-Perot interferometer

Design of CO, CO2 and CH4 gas sensors based on correlation spectroscopy using a Fabry-Perot interferometer
Design of CO, CO2 and CH4 gas sensors based on correlation spectroscopy using a Fabry-Perot interferometer
In this paper we present an analytical methodology to evaluate the response of a gas sensor based on correlation spectroscopy using a Fabry-Perot Interferometer (FPI). Here we consider a FPI which is illuminated with a converging beam from a black-body source. It is shown that the optimal FPI cavity length and reflectivity can be easily determined. We designed and tested three different gas sensors (CO, CO2, and CH4) using this methodology. Our numerical results are fully supported by experimental measurements.
fabry-Perot interferometer, ro-vibrational lines, correlation spectroscopy, gas sensing
0925-4005
410-419
Vargas-Rodríguez, Everardo
ccb44cc5-a083-4c4a-9a22-7564ab993438
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Vargas-Rodríguez, Everardo
ccb44cc5-a083-4c4a-9a22-7564ab993438
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc

Vargas-Rodríguez, Everardo and Rutt, H.N. (2009) Design of CO, CO2 and CH4 gas sensors based on correlation spectroscopy using a Fabry-Perot interferometer. Sensors and Actuators B: Chemical, 137 (2), 410-419. (doi:10.1016/j.snb.2009.01.013).

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Abstract

In this paper we present an analytical methodology to evaluate the response of a gas sensor based on correlation spectroscopy using a Fabry-Perot Interferometer (FPI). Here we consider a FPI which is illuminated with a converging beam from a black-body source. It is shown that the optimal FPI cavity length and reflectivity can be easily determined. We designed and tested three different gas sensors (CO, CO2, and CH4) using this methodology. Our numerical results are fully supported by experimental measurements.

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e-pub ahead of print date: 22 January 2009
Published date: 2 April 2009
Keywords: fabry-Perot interferometer, ro-vibrational lines, correlation spectroscopy, gas sensing
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 265964
URI: http://eprints.soton.ac.uk/id/eprint/265964
ISSN: 0925-4005
PURE UUID: 227bcf1f-9421-4e38-99ba-6804327f432d

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Date deposited: 18 Jun 2008 14:54
Last modified: 06 Dec 2019 17:31

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Contributors

Author: Everardo Vargas-Rodríguez
Author: H.N. Rutt

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